1、Enhance Physical Fitness: Terahertz contains a variety of trace elements needed by the human body, which can make human cells and tissues more active. 2、Good for Health: Relieve tension and irritability and daily muscle soreness, headache, cervical spondylosis, promote blood circulation, and good for physical and mental health. 3、Relieve Fatigue: Relax back, neck and shoulder muscles with simple movements to relieve fatigue caused by working and studying all day. 4、Hot Cold compress: Terahertz ore has good thermal conductivity and specific heat characteristics, and the effect of a cold and hot compress can be easily experienced by placing it in cold or hot water for 5 seconds. 5、Safe: The scraping board is super silky to use, it won't hurt your skin, it's easy to use, and you can enjoy a spa at home or while traveling. 6、Convenient Portable: The Gua Sha massager is small in size and light in weight, which is easy to put in a bag and use anytime, anywhere to relieve fatigue. Item Type: Gua Sha Board Material: THz Principle: Power stone is a high tech material that is self purifying, self repairing, self releasing, self adjusting and self adapting to achieve the purpose of antibacterial, odor absorption, temperature regulation, humidity regulation, electromagnetic shielding, energy saving and health benefits. Power stone contains more than 30 kinds of trace elements beneficial to human body, such as selenium, zinc and calcium. The initial wave released by these elements is in the same wave state as the initial wave of human cells, which can generate resonance, make human cells and tissues more active, promote blood circulation, promote metabolism, and eliminate waste in the body. Features: 1. Reduce facial tension 2. Enhance skin elasticity, firm and firm skin 3. Inhibits the appearance of fine lines and wrinkles 4. Reduce puffiness, bags and dark circles 5. Helps penetrate beauty products such as creams and serums for deeper absorption into the skin 6. Promote blood circulation to the face for a natural and healthy luster 1 x Gua Sha Board